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53 lines
1.0 KiB
C++
53 lines
1.0 KiB
C++
// Copyright (C) 2016 The Qt Company Ltd.
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// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
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#ifndef RENDERAREA_H
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#define RENDERAREA_H
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#include <QList>
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#include <QPainterPath>
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#include <QRect>
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#include <QWidget>
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QT_BEGIN_NAMESPACE
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class QPaintEvent;
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QT_END_NAMESPACE
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//! [0]
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enum Operation { NoTransformation, Translate, Rotate, Scale };
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//! [0]
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//! [1]
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class RenderArea : public QWidget
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{
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Q_OBJECT
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public:
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RenderArea(QWidget *parent = nullptr);
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void setOperations(const QList<Operation> &operations);
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void setShape(const QPainterPath &shape);
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QSize minimumSizeHint() const override;
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QSize sizeHint() const override;
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protected:
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void paintEvent(QPaintEvent *event) override;
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//! [1]
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//! [2]
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private:
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void drawCoordinates(QPainter &painter);
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void drawOutline(QPainter &painter);
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void drawShape(QPainter &painter);
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void transformPainter(QPainter &painter);
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QList<Operation> operations;
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QPainterPath shape;
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QRect xBoundingRect;
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QRect yBoundingRect;
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};
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//! [2]
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#endif // RENDERAREA_H
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